Loose leaf binder



INVENTOR.

TTORNEYS.

@CL 25, 0 5, SWALL LOOSE LEAF BINDER Filed OC. 28. 1929 2 FFI PatentedOct. 25,1932` UNITED Sri-ATE l TENT FFFIC OSCAR s. swALL, or Ross,-CALIFonNIAQnssIenoR To s a n Loosn LEAF co., LTD...

Aconromvrlon or NEVADAM f y i; Y Y

- Loosn LEAF `:BINDER Appneatiqn med oetber 28.1929.l serial nb. acabas.`v`

This invention relates to loose leaf binders and hasjfor its object'improvements in such binders whereby a simple, effective and easilyoperated binder is realized, together with cer I tain specificadvantages of'construction V-appearing in the drawing and following'defyscription. l

In the drawing accompanying this application Fig. 1 is a plan view of myimproved binder lying fully opened and with one cover broken away andwith the inner facing material of the other cover partly broken away soas to reveal the construction.

Fig. 2 is a cross-section of the cover as seen along the line 2-2 ofFig. 1.

Fig. 3 is a cross-section of thecover as seen along the line 3-3 of Fig.1.

Fig.v 4 is cover as seen along the line 4 4 of Fig. 1.

Fig. 5 is an enlarged cross-section of the cover as seen along the line5-5 of Fig. 1.

In the drawing 1 designates one of the binder covers and 1 a portion ofthe other cover, cover 1 being the one which carries the adjustingclamping the leaves 1 (assumed in the vlew to be standing straightupward).

The leaves are apertured by slotting inthe common manner of loose leavesand are aligned on ropes 2 passing through the slots of the leaves andthrough clamping bars 3 arranged at opposite sides of the leaves.

The ropes are countersunk and secured at one end each to cover 1 bymeans of countersunk plates 4 held in place by screws, nails or rivets 5one or more of which pass through the ropes as indicated.

The bodies of the cover are of wooden boards 6 about a half-inch thickand preferably laminated as indicated in Figs. 2 and 4, and which boardsare hollowed out by passing over a shaper to form elongated depressions7 therein for the ropes and a large cen-` tral depression 8 for theoperating mechanism and hand of the operator, and the inn-er v face ofthe board is lowered adjacent depression 8.

The mechanism comprises a cross-bar V9` firmly riveted or otherwisesecured at its opposite ends to the ropes and a ratchet gear an enlargedcross-section of the.

mechanism for releasing and- 10 roll'able along a rack bar 11 extendinglon `gitudinallyf in the central depression and having its endsf 11lvcountersunk in depressions formed in the wood. f Y y The ratchet gear iscarriedby a'block 12 securedto the undersidelof bar 9 androlls along therack las" the bar 9l is grasped with the fingers and manually pulledYoutward ofthe cover to tighten the clamping bars '3 against the leaves.A spring pawl'12` locks thege'ar from reverse movement" and may .bereleased by pressure of a finger of the bar operating handagainstaprotruding.; button 13 upon graspingthe bar 9 by the fingers of the baroperating hand for effecting'movement of'the n bar. @The particularVfeature of the present inventiony in connection with this part Vof thebinder is the-"eXtension-of the gear huby 14 through'the face ofl bar 9land the provi-' sion of across slot 15 in the hub so that it maybeforcibly lturned as by-'screw driver'or ten-'centpiecens'ertedfi'nto'the slot so as to take-up the slack and get abetter'clainping' action on the leaves than otherwise possible.)

lThe clamping bars are of sheet-steel and of L-'shape'lincross-section-as best shown in Fig.` 4l and in whichV ligure it willbeseen that the outer cloth Vor leather cover 16 of the binder coversextends over the o uter and confronting'facesof these clamping bars andis cemented or otherwise secured thereto. The paper sheets or Vleavesare clamped between the leather v(or other material)v facing 'the bars,and aV fullness of the covering material is 'left betweenV the barsandtheir respective coverssvasshown at 16 so Vthat dust anddirt isexcluded while the covers arefree to open y and close, though attentionis called to the 'fact thatfthis .fullness is not the hinge of the.,

tending betweenL lugs 19 struck outwardly .9

frofmthe sheetmetal Aof the clamping bars. f v Wherethe ropes passslidably through the bars I-provide rounded grommets QOclinched inplace,andv .I also cutfout notches in the*- `susl short legs of the bars at 21to clear the ropes yet give a high rib to stiffen the bar.

At the extreme ends of the L-shaped clamping bars I provide a mouldedsoft rubber plugs 22 riveted or otherwise secured to the bars as at 23and the plugs having enlarged projecting heads 24. which in using thebook will take the shock of dropping it about to thulsi avoid injuryboth to the book and to the des i In finishing my book fold the coveringmaterial inward over the margin of the wooden boards, glue same in placeand then cover the inside with a piece of stiff paper or card-. board 25pasted in place and provided (for cover 1) with a cutout matching thedepression 8,. and left free over the sliding elements.

I. lay particular stress on the use of wooden boards hollowed out on oneside for the mechanism in the manner shown as a valuable feature of` myinvention as it greatly facilitates manufacture,y and yields a firmerand more durable structure.

I claim:

1.. In a loose leaf binder, a pair of covers, a leaf clamping baradjacent the hinge end of `each cover, flexible tensioning devicesextending from the inside of the covers through the bars, a covering offlexible sheet material pasted to the outer face of each of the coverscompletely covering each outer face thereof and extending rearwardlytherefrom in an unbrokeny sheet over the outer and clamping surface ofthe adjacent bar and secured thereto.

2.A In a structure as specified in claim l, a portion of said sheetmaterial preserved in a free loopy between the edge of the cover andthey bar.

3. In a loose leaf binder, a pair of covers, flexible binding elementsextending between the inner'faces'of the covers, leaf-clamping bars`through which said elements extend made of sheet-metal and providedwith grommets surrounding said binding elements.

4. In a loose leaf binder, a pair of covers, flexible binding elementsextending between the inner faces of the covers, leaf-clamping barsthrough which said elements extend made of sheet-metal of substantiallyL-section j with said elements passing through the long arms thereof andthe short arms being notched for the elements.

5. In a loose leaf binder, a pair of covers, flexible binding elementsextending between the inner faces of the covers, leaf-clamping barsthrough which said elements extend made of sheet-metal of substantiallyL-section with the long arms in clamping relation for the leaves of thebook, and hinge elements secured to the covers extending beyond thebinding margin of the covers pivotally connected to said bars and asheet of fiexible covering material pasted to the outer face of each ofthe covers extending over the outer able in one of said covers attachedto the elements and adapted to be graspedbythe fingers of a hand of theoperator for'movement, said' i rack extending freely through said crossbar transversely thereto and secured to the cover and said pinioncarried by the cross bar engaging the teethofthe rack, aspring-influenced pawl normally tending to remain in engagement withsaid pinion at all times to permit movement of the pinion in onedirection only, and a finger release for said pawl projecting outwardlybeyond an edge of the cross 'bar adjacent the pinion adapted to beoperated by the pressure of a finger of the bar operating hand upongrasping the cross bar by the bar operating hand for movement thereof.

oscan s. swALL. l

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